GTI L4-2.0L Turbo (BPY) (2007)
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Using a Multimeter, check the Engine Coolant Temperature (ECT) Sensor G62 electrical harness connector terminals to the Motronic Engine
Control Module (ECM) J623 electrical harness connector T60 terminals for an open circuit according to the wiring diagram.
Engine Coolant Temperature
Motronic Engine Control Module (ECM) J623
(ECT) Sensor G62 electrical
electrical connector T60 terminals
harness connector terminals
or test box socket
1
10
2
14
Specified value: 1.5 Ohms Max.
If the specification was not obtained:
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Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring:
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Replace the Motronic Engine Control Module (ECM) J623.
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03: Interrogating Fault Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04: Reset/Delete Diagnostic Data
3. If the DTC memory was erased, generate readiness code.
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End of diagnosis.